Max-planck-gesellschaft Zur F&#xf6;rderung Der Wissenschaften E. V.

Bayer Aktiengesellschaft

Degussa Aktiengesellschaft

Cerdec Aktiengesellschaft Keramische Farben

Dmc, Inc

Empa Eidgenossische Materialprufungs-und Forschungsanstalt

Martin Jansen

Hans-Peter Letschert

Hans-Peter Baldus

Dietrich Speer

Oliver Wagner

Burkhard Standke

Thomas Jäschke

Andrei S Karpov

Hardy Jungermann

Pavel E Kazin

Hasan Cakmak

Aloys Eiling

Dieter Sporn

Nils Perchenek

Pascal Ruffieux

Norbert Schladerbeck

Matthias L Krosche

Eberhard Gunther

Josua L Offelholz

Josua Loffelholz

Juan Ramon Sanchez Valencia

Ulrich Wannagat

Adrian Schervan

Dieter Fischer

Xermán F De La Fuente Leis

Markus Weinmann

Eberhard G&uuml;nther

Jürgen Clade

Utz Müller

Matthias Kroschel

Jörg Schmidt

Grigorios Kolios

Andreas Müller

Konstantin Amsharov

Roman Fasel

John Kähsnitz

The invention relates to a process for applying solid layers () to an object () to be coated by means of at least one radiation source (), in particular a laser radiation source, which comprises at least the step of removal of a sample () in the solid state in at least partially different sections () by means of at least one beam () emitted by the radiation source () to at least partly convert the sample () into a gaseous state () which deposits at least partially on the object () to be coated in order to form a solid layer (), where at the same time the alignment of a trace of the emitted beam () is altered during the step of removal of the sample and the sample () is moved.

Process and apparatus for the application of solid layers

This invention relates to a new method for the production of nitride-based phosphors, in particular, of phosphors containing rare earth elements. The phosphors can be used, for example, in light sources, especially in Light Emitting Devices (LEDs).

Method for producing crystalline nitride phosphors

The invention relates to a new class of luminescent substances (phosphorous) based on an universally dopable matrix made of an amorphous, at the most partially crystalline network of the elements P, Si, B, Al and N, preferably the composition SiBN. Optical excitation and emission can be varied in this system over the entire practically relevant field by incorporation of any cationic activators, alone or in combination, but also by incorporation of oxygen as anionic component. This opens up the entire spectrum of use of luminescent substances, such as illumination systems or electronic screens.

Luminescent substances

The present invention relates to novel methods for the salt-free polymerization of borosilylamines, which comprise the structural feature Si&#x2014;N&#x2014;B and borosilyl hydrocarbons, which comprise the structural feature Si&#x2014;X&#x2014;B, wherein X may be a methylene group or a hydrocarbon chain CHor a cyclic hydrocarbon unit, by reaction thereof with disilazanes RSi&#x2014;NR&#x2014;SiR.

Silicon-boron-carbon-nitrogen ceramics and precursor compounds, methods for the salt-free polymerisation of RnHal3-nSi-X-BRmHal2-m

The invention relates to a light source comprising a primary radiation source and a luminescent substance, and to a method for producing this light source. The invention relates, in particular, to a method for producing an electric light source using one or more luminescent substances emitting in the visible spectrum range, and at least one primary source emitting preferably in the UV range, and which is preferably, but not exclusively, an LED.

Light source with luminophore layer

The present invention relates to novel processes for preparing borylsilylamines, novel amines, novel borosilazane compounds, novel oligoborosilazane or polyborosilazane compounds which have the structural feature Si&#x2014;N&#x2014;B, ceramic material and methods of producing and using them.

Silicon-boron-carbon-nitrogen ceramics and precursor compounds, method for the production and use thereof

Silicon-boron-carbon-nitrogen ceramics and precursor compounds, methods for the production and use thereof

The invention relates to a method for the regeneration of a reactor and the use of said method for the improved performance of production processes for desired products.

Integrated, continuous method for the production of molecular single-component percursors having a nitrogen bridging function

The present invention relates to compounds on apatite basis, having the general formula M(A0)X wherein X is situated in the hexagonal channels of the apatite structure and includes Cu-atoms, processes for the preparation thereof as well as applications of these compounds. The compounds presented herein are particularly useful as pigments.

Ceramic pigments on apatite basis

The invention relates to a method for continuously producing pre-ceramic polymers. The inventive method consists in synthesizing polymers, in separating polymers from a reaction mixture and in thermally conditioning for defining a cross linkage degree and rheological properties, wherein all said steps are integrated into a single method. The thus obtainable polymers are used in the form of an initial material for producing non-oxidized ceramics in ternary X/Y/N or X/Y/N/C quaternary systems. Said materials are characterized by the high mechanical, thermal and chemical resistance thereof, wherein any X and Y combination can represent in particular Si, B, P, Al, Ti, V, Zr, Ta elements.

Process for the continuous preparation and isolation of soluble preceramic oligomers and/or polymers

The present invention relates to compounds on apatite basis, having the general formula M(AO)X wherein X is situated in the hexagonal channels of the apatite structure and includes Cu-atoms, processes for the preparation thereof as well as applications of these compounds. The compounds presented herein are particularly useful as pigments.

The present invention concerns a process for producing silylalkylboranes containing the structural feature Si&#x2014;C&#x2014;B, new molecular silylalkylboranes, new molecular silylalkylborazines, new oligoborocarbosilazanes and polyborocarbosilazanes, a process for their production and their use as well as silicon boron carbide nitride ceramics and a process for their production.

High temperature-stabile silicon boron carbide nitride ceramics comprised of silylalkyl borazines, method for the production thereof, and their use

The present invention relates to novel alkylhalosilylaminoboranes, in particular alkylchlorosilylaminoboranes, which make it possible to adjust the viscosity of polyborosilazane compounds by varying the number of reactive centers, to novel borosilazane compounds, to novel oligoborosilazane or polyborosilazane compounds which have the structural feature R&#x2014;Si&#x2014;NH&#x2014;B&#x2014;R, where Ror Ror both is/are a hydrocarbon radical having from 1 to 20 carbon atoms, in particular an alkyl, phenyl or vinyl group, to silicon borocarbonitride ceramic powder, to ceramic material based on SiC, SiN and BN and to processes for producing each of these and to the use of the polyborosilazanes and the ceramic materials.

Silicoboroncarbonitride ceramics and precursor compounds, method for the production and use thereof

The present invention concerns a process for producing silylalkylboranes containing the structural feature Si&#x2014;C&#x2014;B, new molecular silylalkylboranes, new molecular silyalkylborazines, new oligoborocarbosilazanes and polyborocarbosilazanes, a process for their production and their use as well as silicon boron carbide nitride ceramics and a process for their production.

Nitride or oxidenitride based red to yellow pigments, such as tantalum(V) nitride and oxidenitrides containing tantalum may be produced by passing ammonia over nitridable metal compounds, in particular oxide compounds, at 700 to 1250&deg; C. According to the invention, nitriding proceeds in a rotary tube or fluidised bed reactor in the presence of an oxide from the series SiO , ZrO , GeO , SnO , TiO and HfO under conditions under which this oxide is substantially not nitrided.

Growing community of inventors

Leonberg, Germany

Martin Jansen